Time

Chapter Learning Outcomes ,[object Object],[object Object],[object Object]

Time In Seconds ,[object Object],This is the hour hand. This is the minute hand. This is the second hand .

Time In Seconds ,[object Object],I can recall that 1 hour = 60 minutes . Well, 1 minute = 60 seconds ! We use s to stand for seconds.

Time In Seconds 3.00 p.m. 3.01 p.m. after 30 s after 30 s

The 24-hour Clock ,[object Object],9.30 a.m. Nine thirty a.m. Using 12-hour clock 09 30 Zero nine thirty hours Using 24-hour clock

The 24-hour Clock ,[object Object],10.00 p.m. Ten p.m. Using 12-hour clock 22 00 Twenty-two hundred hours Using 24-hour clock

Example ,[object Object],04 30 5.20 p.m. 15 15 2.05 a.m. 12 00 9.55 p.m. 12 40 5.05 a.m. 12-hour clock 24-hour clock 4.30 a.m. 17 20 3.15 p.m. 02 05 Noon 21 55 12.40 p.m. 05 05

Word Problems ,[object Object],She took 1 h 20 min. I can solve this using a time line.

Word Problems ,[object Object],He started cooking at 11 35. Count backwards on the time line.

Example ,[object Object],He left Melbourne at 19 45 on Monday.

Example ,[object Object],4 h 30 min + 2 h 45 min = 6 h 75 min = 7 h 15 min The movie marathon lasted 7 h 15 min.

Reference - Textbooks Learning Outcomes Telling time in seconds 4B Pg 81 – 85 4B Pg 64 – 67 Understanding and using the 24-hour clock 4B Pg 86 – 89 4B Pg 68 – 71 Solve word problems related to time 4B Pg 89 – 97 4B Pg 72 – 76

Time

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